Cap for air compressor



FIG. 1 is a front and upper and right perspective view of a cap for air compressor showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a front and upper and left perspective view thereof; and,

FIG. 9 is a front and bottom perspective view thereof.

The broken away symbols in the drawings indicate that any portion of the article beyond what is shown forms no part of the claimed design. 

CLAIM The ornamental design for a cap for air compressor, as shown and described. 